TailwindCSS 对于 Angular 构建来说太大了

Question

当我使用 Tailwind 使用自定义 webpack 设置 Angular 应用程序的样式时，styles.js 块在运行后非常大ng build，大约 30mb。这不仅需要永远的构建时间，而且还会减慢我的网络应用程序的速度。

清除 Tailwind 后，styles.js 块要小得多（~100kb），但是 30mb 看起来大得离谱，甚至未清除。

这甚至适用于使用https://github.com/notiz-dev/ngx-tailwind构建的新应用程序，所以我不确定是什么导致了这个问题。

tailwind.config.js

module.exports = {
  purge: [],
  darkMode: false, // or 'media' or 'class'
  theme: {
    extend: {},
  },
  variants: {
    extend: {},
  },
  plugins: [],
}

webpack.config.js

module.exports = {
  module: {
    rules: [
      {
        test: /\.scss$/,
        loader: 'postcss-loader',
        options: {
          postcssOptions: {
            ident: 'postcss',
            syntax: 'postcss-scss',
            plugins: [
              require('postcss-import'),
              require('tailwindcss'),
              require('autoprefixer'),
            ],
          },
        },
      },
    ],
  },
};

angular.json

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "ngxTailwind": {
      "projectType": "application",
      "schematics": {
        "@schematics/angular:component": {
          "style": "scss"
        }
      },
      "root": "",
      "sourceRoot": "src",
      "prefix": "app",
      "architect": {
        "build": {
          "builder": "ngx-build-plus:browser",
          "options": {
            "extraWebpackConfig": "webpack.config.js",
            "outputPath": "dist/ngxTailwind",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "tsconfig.app.json",
            "aot": true,
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.scss"
            ],
            "scripts": []
          },
          "configurations": {
            "production": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "extractCss": true,
              "namedChunks": false,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "budgets": [
                {
                  "type": "initial",
                  "maximumWarning": "2mb",
                  "maximumError": "5mb"
                },
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "6kb",
                  "maximumError": "10kb"
                }
              ]
            }
          }
        },
        "serve": {
          "builder": "ngx-build-plus:dev-server",
          "options": {
            "extraWebpackConfig": "webpack.config.js",
            "browserTarget": "ngxTailwind:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "ngxTailwind:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "ngxTailwind:build"
          }
        },
        "test": {
          "builder": "ngx-build-plus:karma",
          "options": {
            "extraWebpackConfig": "webpack.config.js",
            "main": "src/test.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "tsconfig.spec.json",
            "karmaConfig": "karma.conf.js",
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.scss"
            ],
            "scripts": []
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "tsconfig.app.json",
              "tsconfig.spec.json",
              "e2e/tsconfig.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        },
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "e2e/protractor.conf.js",
            "devServerTarget": "ngxTailwind:serve"
          },
          "configurations": {
            "production": {
              "devServerTarget": "ngxTailwind:serve:production"
            }
          }
        }
      }
    }
  },
  "defaultProject": "ngxTailwind",
  "cli": {
    "analytics": "c9efd59e-9db9-4f26-9a6f-e35b477d8e5a"
  }
}

样式.scss

@import 'tailwindcss/base';
@import 'tailwindcss/components';
@import 'tailwindcss/utilities';

有没有人知道为什么它这么大？我知道它没有被清除，但https://tailwindcss.com/docs/optimizing-for-production声称未压缩的大小低于 4mb，为什么我得到了将近 7 倍的这个？

Answer 1

只需更改tailwind.config.js

module.exports = {
  purge: {
    enabled: true,
    content: ['./src/**/*.{html,ts}']
  },
  //Other Code
};

然后构建： ng build --prod

参考：手动启用